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2H-1-Benzopyran-2-one,7-hydroxy-4-(trifluoromethyl)- (575-03-1)

Identification
Name:2H-1-Benzopyran-2-one,7-hydroxy-4-(trifluoromethyl)-
Synonyms:4-(Trifluoromethyl)-7-hydroxycoumarin;4-(Trifluoromethyl)umbelliferone;7-Hydroxy-4-(trifluoromethyl)-2H-chromen-2-one;7-Hydroxy-4-(trifluoromethyl)coumarin;NSC 138174;
CAS:575-03-1
Molecular Formula: C10H5F3O3
Molecular Weight: 230.14011
InChI: InChI=1S/C10H5F3O3/c11-10(12,13)7-4-9(15)16-8-3-5(14)1-2-6(7)8/h1-4,14H
Molecular Structure: (C10H5F3O3) 4-(Trifluoromethyl)-7-hydroxycoumarin;4-(Trifluoromethyl)umbelliferone;7-Hydroxy-4-(trifluoromethyl)...
Properties
Transport:UN 2811
Density:1.569 g/cm3
Refractive index:1.546
Water Solubility:DMF: soluble
Solubility:DMF: soluble
Appearance:Off-white to light yellow or pink powder
Specification:

 7-Hydroxy-4-trifluoromethylcoumarin , its cas register number is 575-03-1. It also can be called 7,4-Hfc ; 2H-1-Benzopyran-2-one, 7-hydroxy-4-(trifluoromethyl)- .It is a off-white to light yellow or pink powder.

Usage:Suitable as pH-indicator. Trifluoromethylumbelliferone is a slightly longer wavelength analog of 4-methylcoumarin (4-MU) with a pKa that more closely matches physiological pH values.
Safety Data
Hazard Symbols T:Toxic